package com.datareport.data.security;

import cn.hutool.json.JSONUtil;
import com.datareport.data.Utils.JwtUtils;
import com.datareport.data.dto.ResultDTO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.logout.LogoutSuccessHandler;
import org.springframework.security.web.authentication.logout.SecurityContextLogoutHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@Component
public class JwtLogoutSuccessHandler implements LogoutSuccessHandler {
   @Autowired
   JwtUtils jwtUtils;

   @Override
   public void onLogoutSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication)
           throws IOException, ServletException {
      if (authentication != null) {
         new SecurityContextLogoutHandler().logout(request, response, authentication);
      }
      response.setContentType("application/json;charset=UTF-8");
      response.setHeader(jwtUtils.getHeader(), "");
      ServletOutputStream out = response.getOutputStream();
      ResultDTO result = ResultDTO.okOf();
      out.write(JSONUtil.toJsonStr(result).getBytes("UTF-8"));
      out.flush();
      out.close();
   }
}